OF WASHINGTON. 507 



Fresno on July 17, and the winged Blastophagas issued from 

 these two figs between July 21 and July 27. Their progeny 

 formed a second generation of which the winged females issued 

 from the figs between September 17 and September 28. The 

 third resulting generation did not complete its transformations 

 the same season, but had increased to the inhabitants of at least 

 two thousand figs and thus counteracted, in no small measure, the 

 loss caused by the issuing of the fourth generation of the Fresno 

 Blastophagas. 



Mr. Swingle stated that one reason for the incomplete and 

 often erroneous conclusions in reference to figs reached by the 

 botanists was that they had depended very largely upon certain 

 entomologists for their data. He made some remarks regarding 

 his work with figs in Italy and North Africa. In reply to the 

 question whether there were any parasites introduced with the 

 Blastophaga into California, Mr. Schwarz replied that, to his 

 knowledge, none had been introduced, but that large numbers of 

 the fig-insects were destroyed 'by being caught in the webs of 

 spiders spun commonly on the fig trees. He said it was very 

 important that other varieties of Caprifig trees be brought in. Mr. 

 Swingle mentioned a Nematode, Anguillula, which, probably 

 living as a mess-mate, was somewhat injurious to the Blastophaga 

 in the Old World. Dr. Stiles was inclined to consider this 

 Nematode not as harmless as supposed, and he mentioned some 

 allied forms of this and other genera which have been found to be 

 quite harmful. 



The following paper was sent by Prof. Uhler for publication 

 in the PROCEEDINGS : 



SOME NEW GENERA AND SPECIES OF NORTH AMERICAN 

 HEMIPTERA. 



By P. R. UHLER, LL. D. 



Div. MYODOCHINA. 



Dycoderus, new genus. 



Closely related to Ptochiomera Say. Head thick sub-conical, hairy and 

 including the eyes, about as wide as the anterior lobe of the pronotum; 

 antennae very thick, the apical joint thicker than the others, about twice 

 as long as the third, the second longest, thinnest, tapering towards the 

 base, the basal joint stout, shorter than the front, subfusiform ; eyes 

 globular, placed below the line of the convex front, the front broad, tu- 



